[Public]
> -Original Message-
> From: Kuehling, Felix
> Sent: Friday, August 9, 2024 7:49 PM
> To: amd-gfx@lists.freedesktop.org; Zhang, GuoQing (Sam)
> ; Kim, Jonathan
> Subject: Re: [PATCH] drm/amdgpu: fix
> KFDMemoryTest.PtraceAccessInvisibleVram fail on SRIOV
&
To: amd-gfx@lists.freedesktop.org , Zhang,
GuoQing (Sam) , Kim, Jonathan
Subject: Re: [PATCH] drm/amdgpu: fix KFDMemoryTest.PtraceAccessInvisibleVram
fail on SRIOV
On 2024-08-07 04:36, Samuel Zhang wrote:
> Ptrace access VRAM bo will first try sdma access in
> amdgpu_ttm_access_memory_sdma(),
On 2024-08-07 04:36, Samuel Zhang wrote:
Ptrace access VRAM bo will first try sdma access in
amdgpu_ttm_access_memory_sdma(), if fails, it will fallback to mmio
access.
Since ptrace only access 8 bytes at a time and
amdgpu_ttm_access_memory_sdma() only allow PAGE_SIZE bytes access,
it returns
To: amd-gfx@lists.freedesktop.org
Cc: Zhang, GuoQing (Sam)
Subject: [PATCH] drm/amdgpu: fix KFDMemoryTest.PtraceAccessInvisibleVram fail
on SRIOV
Ptrace access VRAM bo will first try sdma access in
amdgpu_ttm_access_memory_sdma(), if fails, it will fallback to mmio
access.
Since ptrace only access 8 bytes a
Ptrace access VRAM bo will first try sdma access in
amdgpu_ttm_access_memory_sdma(), if fails, it will fallback to mmio
access.
Since ptrace only access 8 bytes at a time and
amdgpu_ttm_access_memory_sdma() only allow PAGE_SIZE bytes access,
it returns fail.
On SRIOV, mmio access will also fail as
